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authorTheodore Ts'o <tytso@mit.edu>2008-10-16 20:00:24 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-10-16 20:00:24 -0400
commit3e624fc72fba09b6f999a9fbb87b64efccd38036 (patch)
treef0a1feac377788b27ea704519a33f367a6d415f9 /fs/ext4/mballoc.h
parent22359f5745eb26bd3205a1ede7968c8944398220 (diff)
downloadop-kernel-dev-3e624fc72fba09b6f999a9fbb87b64efccd38036.zip
op-kernel-dev-3e624fc72fba09b6f999a9fbb87b64efccd38036.tar.gz
ext4: Replace hackish ext4_mb_poll_new_transaction with commit callback
The multiblock allocator needs to be able to release blocks (and issue a blkdev discard request) when the transaction which freed those blocks is committed. Previously this was done via a polling mechanism when blocks are allocated or freed. A much better way of doing things is to create a jbd2 callback function and attaching the list of blocks to be freed directly to the transaction structure. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.h')
-rw-r--r--fs/ext4/mballoc.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index 94cb7b9..b5dff1f 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -269,8 +269,6 @@ struct buffer_head *read_block_bitmap(struct super_block *, ext4_group_t);
static void ext4_mb_generate_from_pa(struct super_block *sb, void *bitmap,
ext4_group_t group);
-static void ext4_mb_poll_new_transaction(struct super_block *, handle_t *);
-static void ext4_mb_free_committed_blocks(struct super_block *);
static void ext4_mb_return_to_preallocation(struct inode *inode,
struct ext4_buddy *e4b, sector_t block,
int count);
@@ -278,6 +276,7 @@ static void ext4_mb_put_pa(struct ext4_allocation_context *,
struct super_block *, struct ext4_prealloc_space *pa);
static int ext4_mb_init_per_dev_proc(struct super_block *sb);
static int ext4_mb_destroy_per_dev_proc(struct super_block *sb);
+static void release_blocks_on_commit(journal_t *journal, transaction_t *txn);
static inline void ext4_lock_group(struct super_block *sb, ext4_group_t group)
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